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Central angle - Wikipedia


A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B.

Central angle of a circle - Math Open Reference


Given two points A and B, lines from them to center of the circle form the central angle ∠AOB. The central angle is the smaller of the two at the center. It does not  ...

Central Angle -- from Wolfram MathWorld


A central angle in a circle determines an arc arcAC . CentralInscribedAngle. For an inscribed angle ∠ABC and central angle ∠AOC with the same endpoints, ...

What is a Central Angle? - Definition, Theorem & Formula - Video ...


In this lesson, you will learn about the definition and properties of a central angle. You will also discover what the Central Angle Theorem is and...

Subtended angle from arc length | Arc length (degrees) | Circles ...


Watch Sal solve an example where he finds the central angle given arc length.

Central Angles, Arc Length, and Sector Area - Nelson Education


Central Angles, Arc Length, and Sector Area. An angle whose vertex is the centre of a circle and whose sides pass through a pair of points on the circle is called ...

What is a Sector and Central Angle? | Virtual Nerd


Note: Just about everything in math has a name! Did you know that a fraction of the area of a circle is known as a sector? This tutorial introduces you to the term ...

Central angle | Define Central angle at Dictionary.com


Central angle definition, an angle formed at the center of a circle by two radii. See more.

Central Angle of a Circle. Illustrated explanation with interactive ...


Formula of the Central Angle of a Circle explained with diagram and interactive applet.

IXL - Central angles (Geometry practice)


Fun math practice! Improve your skills with free problems in 'Central angles' and thousands of other practice lessons.